STI Publications - View Publication Form #10479

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Publication Information
Title Probing the fundamental limit of niobium in high radiofrequency fields by dual mode excitation in superconducting radiofrequency cavities
Abstract We have studied thermal breakdown in several multicell superconducting radiofrequency cavity by simultaneous excitation of two TM$010$ passband modes. Unlike measurements done in the past, which indicated a clear thermal nature of the breakdown, our measurements present a more complex picture with interplay of both thermal and magnetic effects. JLab LG-1 that we studied was limited at 40.5 MV/m, corresponding to B$_{peak}$ = 173 mT, in 8$\pi$/9 mode. Dual mode measurements on this quench indicate that this quench is not purely magnetic, and so we conclude that this field is not the fundamental limit in SRF cavities. *Authored by Jefferson Science Associates, LLC under U.S. DOE Contract No. DE-AC05-06OR23177.
Author(s) Grigory Eremeev , Rongli Geng, Ari Palczewski
Publication Date July 2011
Document Type Meeting, Proceedings
Primary Institution Thomas Jefferson National Accelerator Facility, Newport News
Affiliation Accelerator Ops, R&D / Inst for SRF Sci & Tech / SRF Processes & Materials
Funding Source
Proprietary? No
This publication conveys Technical Science Results
Document Numbers
JLAB Number: JLAB-ACC-12-1561 OSTI Number: 1057886
LANL Number: Other Number: DOE/OR/23177-2155
Associated with an experiment No
Associated with EIC No
Supported by Jefferson Lab LDRD Funding No
Meeting / Conference
Meeting Name SRF 2011
Meeting Date 7/21/2011
Document Subtype Paper (proceedings only)
Proceedings
Title Proceedings of SRF 2011
Editor(s)
Publisher Jacow
Refereed No
Page Number 746
Year 2011
Attachments/Datasets/DOI Link
Document(s)
0000020657-THPO017.pdf (STI Document)
DOI Link
Dataset(s) (none)
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